Seagate Cheetah NS SAS ST3400755SS manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

Ir a la página of

Buen manual de instrucciones

Las leyes obligan al vendedor a entregarle al comprador, junto con el producto, el manual de instrucciones Seagate Cheetah NS SAS ST3400755SS. La falta del manual o facilitar información incorrecta al consumidor constituyen una base de reclamación por no estar de acuerdo el producto con el contrato. Según la ley, está permitido adjuntar un manual de otra forma que no sea en papel, lo cual últimamente es bastante común y los fabricantes nos facilitan un manual gráfico, su versión electrónica Seagate Cheetah NS SAS ST3400755SS o vídeos de instrucciones para usuarios. La condición es que tenga una forma legible y entendible.

¿Qué es un manual de instrucciones?

El nombre proviene de la palabra latina “instructio”, es decir, ordenar. Por lo tanto, en un manual Seagate Cheetah NS SAS ST3400755SS se puede encontrar la descripción de las etapas de actuación. El propósito de un manual es enseñar, facilitar el encendido o el uso de un dispositivo o la realización de acciones concretas. Un manual de instrucciones también es una fuente de información acerca de un objeto o un servicio, es una pista.

Desafortunadamente pocos usuarios destinan su tiempo a leer manuales Seagate Cheetah NS SAS ST3400755SS, sin embargo, un buen manual nos permite, no solo conocer una cantidad de funcionalidades adicionales del dispositivo comprado, sino también evitar la mayoría de fallos.

Entonces, ¿qué debe contener el manual de instrucciones perfecto?

Sobre todo, un manual de instrucciones Seagate Cheetah NS SAS ST3400755SS debe contener:
- información acerca de las especificaciones técnicas del dispositivo Seagate Cheetah NS SAS ST3400755SS
- nombre de fabricante y año de fabricación del dispositivo Seagate Cheetah NS SAS ST3400755SS
- condiciones de uso, configuración y mantenimiento del dispositivo Seagate Cheetah NS SAS ST3400755SS
- marcas de seguridad y certificados que confirmen su concordancia con determinadas normativas

¿Por qué no leemos los manuales de instrucciones?

Normalmente es por la falta de tiempo y seguridad acerca de las funcionalidades determinadas de los dispositivos comprados. Desafortunadamente la conexión y el encendido de Seagate Cheetah NS SAS ST3400755SS no es suficiente. El manual de instrucciones siempre contiene una serie de indicaciones acerca de determinadas funcionalidades, normas de seguridad, consejos de mantenimiento (incluso qué productos usar), fallos eventuales de Seagate Cheetah NS SAS ST3400755SS y maneras de solucionar los problemas que puedan ocurrir durante su uso. Al final, en un manual se pueden encontrar los detalles de servicio técnico Seagate en caso de que las soluciones propuestas no hayan funcionado. Actualmente gozan de éxito manuales de instrucciones en forma de animaciones interesantes o vídeo manuales que llegan al usuario mucho mejor que en forma de un folleto. Este tipo de manual ayuda a que el usuario vea el vídeo entero sin saltarse las especificaciones y las descripciones técnicas complicadas de Seagate Cheetah NS SAS ST3400755SS, como se suele hacer teniendo una versión en papel.

¿Por qué vale la pena leer los manuales de instrucciones?

Sobre todo es en ellos donde encontraremos las respuestas acerca de la construcción, las posibilidades del dispositivo Seagate Cheetah NS SAS ST3400755SS, el uso de determinados accesorios y una serie de informaciones que permiten aprovechar completamente sus funciones y comodidades.

Tras una compra exitosa de un equipo o un dispositivo, vale la pena dedicar un momento para familiarizarse con cada parte del manual Seagate Cheetah NS SAS ST3400755SS. Actualmente se preparan y traducen con dedicación, para que no solo sean comprensibles para los usuarios, sino que también cumplan su función básica de información y ayuda.

Índice de manuales de instrucciones

  • Página 1

    Prod uct Ma nu al Ch eet ah ® NS SAS 10045 3994 Rev . B Aug ust 2007 ST34 00 755S S[...]

  • Página 2

    Copyri ght © 200 7 Seagat e T echnology LL C. All r ight s reserved . Printed in U.S. A. Pub lication nu mber: 100 45399 4, Rev . B, August 2007 Sea gate, Sea gate T echnolog y and the W ave logo are registe red trade marks of S eagate T echno logy LL C in the United S tates an d/or other count ries. Chee tah, S eaT ools and S eaTDD are either tra[...]

  • Página 3

    Cheetah N S SAS Prod uct Manual , Rev. B i Cont ent s 1.0 S cope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 S tandards, co mpliance an d refere nce document s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 S tandar[...]

  • Página 4

    ii Cheet ah NS SAS P roduct Man ual, Rev. B 6.4.2 Relat ive hum idity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 6.4.3 E ffective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 6.4.4 S hock and vibr ation . . . . . . . . . . . . . . . . [...]

  • Página 5

    Cheetah N S SAS Prod uct Manual , Rev. B 1 List o f Fi gures Figure 1. Typical ST3400755SS drive +5V and +12V current profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 2. ST3400755SS (3 Gbit) DC c urrent and power vs. input/output operations per second . . . . . . . . . . . . . . . . . 25 Figu r e 3 . Lo[...]

  • Página 6

    2 Cheet ah NS SAS P roduct Man ual, Rev. B[...]

  • Página 7

    Cheetah N S SAS Prod uct Manual , Rev. B 1 1.0 S cope This ma nual de scribes Sea gate T echnolog y ® LL C, Cheet ah ® NS S AS (Seri al Atta ched SCS I) disk drives. Cheet ah drives support the SAS Protocol speci ficatio ns to the extent describe d in this manua l. The SAS I nte r- face Manu al (par t number 10029307 1) de scribes the gener al SA[...]

  • Página 8

    2 Cheet ah NS SAS P roduct Man ual, Rev. B[...]

  • Página 9

    Cheetah N S SAS Prod uct Manual , Rev. B 3 2.0 S t andards, compliance and ref erence docu ment s The dr ive has been d evelope d as a system p eriphe ral to the hig hest st and ards of desig n and constru ction. T he drive d epen ds on it s h ost equipm ent to provid e ad equate power and envi ronm ent for optimum perf orm ance and compli ance wit[...]

  • Página 10

    4 Cheet ah NS SAS P roduct Man ual, Rev. B 2.2 C omp liance 2.2.1 Elect roma gn etic com plia nce Seag ate uses an i ndepend ent lab oratory to confirm comp liance w ith the di rectives/st and ards for C E Ma rking and C-T ick Marking. The drive was tested in a r epresent ative system for typical a pplications. The selected sys- tem re present s th[...]

  • Página 11

    Cheetah N S SAS Prod uct Manual , Rev. B 5 2.3 Ref eren ce doc ume nt s SAS In stall ation Gui de Seag ate par t number: 1004 53998 SCSI Commands R eferen ce Ma nual Seag ate par t number: 1002 93068 SAS In terface Ma nual Seag ate par t number: 1002 93071 Applica ble ANSI SAS docu ments SFF-83 23 3.5” D rive For m Factor with Seri al Co nnector [...]

  • Página 12

    6 Cheet ah NS SAS P roduct Man ual, Rev. B[...]

  • Página 13

    Cheetah N S SAS Prod uct Manual , Rev. B 7 3.0 General d escription Cheet ah dr ives combi n e T unneling Ma gneto resistive (T M R) head s and a S er ial Att ach ed S CSI (SAS ) inter face to pro vide hig h pe rfor mance , high cap acity d at a sto rage for a va riety o f system s includ ing en gineer ing wor kst a- tions, ne twork servers, m ainf[...]

  • Página 14

    8 Cheet ah NS SAS P roduct Man ual, Rev. B 3. 1 St and ar d fea t u re s Cheet ah NS SAS drive s have the fo llowin g standa rd feature s: • Perp endicular recording techno logy • 1.5 / 3 Gb it Serial Att ached SCSI (SAS) inter face • Integrat ed du al port SAS controll er • Suppo rt for S AS expander s and fanou t adap ters • Downloa dab[...]

  • Página 15

    Cheetah N S SAS Prod uct Manual , Rev. B 9 3.5 Fo rma tte d ca paciti es S tandard OEM models are for matted to 512 byte s per block. Th e block size is select able at forma t time and must be a mul tiple of 4 bytes. Users having the necessary eq uipmen t may mo dify the data block size before issuin g a format command a nd obta in dif ferent fo rm[...]

  • Página 16

    10 Cheet ah NS SAS P roduct Man ual, Rev. B[...]

  • Página 17

    Cheetah N S SAS Prod uct Manual , Rev. B 11 4.0 Performance cha racteristics This secti on pr ovides det ailed i nforma tion co ncerning pe rformance -re lated charact eristics a nd fe atures of Che etah NS SAS dr ives. 4.1 Int e rn al driv e char act eris tic s ST3400755SS Drive capacity 400.0 Gbytes (formatted, rounded off value) * Read/write dat[...]

  • Página 18

    12 Cheet ah NS SAS P roduct Man ual, Rev. B 4.2.2 For mat co mmand execut ion tim e (min utes) Executio n time measured from rece ipt of t he last byte of the Com mand Descri ptor Bl ock (CDB) to the req uest for a S tat us Byte T ransfer to th e Initiat or (excludi ng connect /disconne ct). 4.2.3 Ge neral perf orma nce cha racter istics 4.3 St art[...]

  • Página 19

    Cheetah N S SAS Prod uct Manual , Rev. B 13 4.4 P r ef etc h /m ult i- s eg m en te d ca ch e co nt ro l The d rive provides a pref etch (rea d look- ahead) and mul t i-segme nted cache contr ol algo rithms that in m any cases ca n enhan ce syst em per formance. Cache r efers to the drive buffer storag e sp ace wh en it is used in cache op erat ion[...]

  • Página 20

    14 Cheet ah NS SAS P roduct Man ual, Rev. B If rea d caching is en abled (RCD=0), then dat a written to th e medium is retained in the cach e to be m ade avail- able for future re ad cach e hits . The sam e buffe r sp ace and se gmenta tion is use d as set up for re ad func tions. The buf fer segme nt ation scheme is set up or chan ged indep endent[...]

  • Página 21

    Cheetah N S SAS Prod uct Manual , Rev. B 15 5.0 Reliabi lity specifi cations The follow ing reliab ility specificat ions assume correct hos t and driv e ope ration al int erface, inclu ding all inter - face timi ngs, power supply volt ages, environ mental requir ements and dri ve mounting constraint s. 5.1 E rror ra te s The er ror rat es stated in[...]

  • Página 22

    16 Cheet ah NS SAS P roduct Man ual, Rev. B 5.1.3 Seek errors A seek err or is defined as a failure of the dri ve to pos ition the heads to the addresse d track. Aft er dete cting an initia l seek error , the driv e automati call y perf orms an error recovery process. If the er ror recover y process fails, a seek positionin g error (Error cod e = 1[...]

  • Página 23

    Cheetah N S SAS Prod uct Manual , Rev. B 17 5.2.4 S .M.A. R.T . S.M.A.R .T . is an acronym for Se lf-Mon itoring Analysis and Repor ting T echnol ogy . This techno logy is intended to recogn ize conditions th at indicate im minent drive failur e and is designe d to provide suf fici ent warning of a failu re to allow you to back up the dat a be fore[...]

  • Página 24

    18 Cheet ah NS SAS P roduct Man ual, Rev. B Err or rate is the number of errors per oper ation. The algo rith m tha t S .M.A .R.T . uses to re cord rate s of err or i s to set thre sholds f or th e number of erro rs an d their inter v al. If the n umber of errors e xceeds the th resho ld before the inte rval expire s, the er ror r ate is considered[...]

  • Página 25

    Cheetah N S SAS Prod uct Manual , Rev. B 19 The mo st thorough o ption is the extended test th at perform s variou s tests on the drive an d scans every logical blo ck address (L BA) of the drive . The short test is ti me- restricted and l imited in length —it does not scan the entire m edia su rface, but d oes some fun dame ntal test s and scans[...]

  • Página 26

    20 Cheet ah NS SAS P roduct Man ual, Rev. B Each test consist s of three segments: an electr ical test segmen t, a servo test segment, and a read/ verify scan segment . Sho rt tes t (Fun cti on C ode: 00 1b) The p urpose of the short test is to p rovide a tim e-limite d test that test s as much of the drive a s possib le within 120 seconds. Th e sh[...]

  • Página 27

    Cheetah N S SAS Prod uct Manual , Rev. B 21 procedu re. Seagate will pay for tr ansporting the rep air or replacement item to the custome r . For more det ailed warran ty in formati on, re fer to the stan dard terms an d c ondition s of purcha se for S eaga te prod uct s on your pur- chase docu ment ation. The r emaining warrant y for a p articu la[...]

  • Página 28

    22 Cheet ah NS SAS P roduct Man ual, Rev. B[...]

  • Página 29

    Cheetah N S SAS Prod uct Manual , Rev. B 23 6.0 Physi cal/electrical spe cifications This secti on pro vides infor mation re lating to the physical and electrica l chara cteristics o f the driv e. 6.1 AC po wer re qu ir em ent s None. 6.2 DC po wer re qu ir em ent s The volta ge and current r equir ements for a s ingle d rive a re show n below . V [...]

  • Página 30

    24 Cheet ah NS SAS P roduct Man ual, Rev. B [5] See p aragr aph 6.2.1, "Con ducted noise immuni ty ." S pecified volt age to lerance includes r ipple, noise , and transient resp onse. [6] Duri ng idle, the dri ve heads are relocat ed every 60 second s to a random loca tion withi n the band fr om three- quar ters to maximum track. General [...]

  • Página 31

    Cheetah N S SAS Prod uct Manual , Rev. B 25 Figure 19. T ypical ST3400755SS d rive +5V and +12V current p rofiles 6. 3 Power di ss ipat io n T ypical power dissip ation under idle co nditions in 3Gb o peration i s 8.19 watt s (2 7.95 BTU s per hour ). T o obta in operating powe r for typical rando m read opera tions, re fer to the following I/O ra [...]

  • Página 32

    26 Cheet ah NS SAS P roduct Man ual, Rev. B 6.4 Enviro nme nt al limits T emper ature and hum idity values exp erienced by the dr iv e must be such t hat condensation does not occur on any dr ive p art. A ltitude a nd atmosp heric p ressure sp ecificati ons are reference d to a stand ard day at 58. 7°F (14.8°C) . Maxim um wet bul b tempe rature i[...]

  • Página 33

    Cheetah N S SAS Prod uct Manual , Rev. B 27 6.4.2 Rela tive hu midity The valu es below assume that n o cond ensation on th e drive occurs. a. Operati ng 5% to 95% non- condensing r elative hu midity wi th a max imum g radient of 2 0% per h our . b. Non -operating 5% to 95% non- condensing r elative hu midity . 6.4.3 Eff ective alt itude ( sea leve[...]

  • Página 34

    28 Cheet ah NS SAS P roduct Man ual, Rev. B d. Packag ed Disk drives shipped as loose load ( not palletized) general freight will be p ackag ed to withst and dr ops fr om hei ghts as de fined in t he tabl e below . Fo r addit ional de tails refer to Seaga te specifica tions 30 190-001 (under 100 l bs/45 kg) or 30191-00 1 (o ver 100 lbs/45 Kg). Driv[...]

  • Página 35

    Cheetah N S SAS Prod uct Manual , Rev. B 29 6.4.4.2 V ibration a. Operati ng—nor mal The dr ive as inst alled for normal oper ation, shall co mply wit h the comp lete specifie d perf ormance w hile subjected t o contin uous vibrati on not exce eding 5 - 500 Hz @ 0. 5 G (0 to peak , swept sine, 1. 0 octive/min) V ibrat ion may be a pplied in the X[...]

  • Página 36

    30 Cheet ah NS SAS P roduct Man ual, Rev. B exposed to a n am bient relat ive hum i dity gr eate r th an 9 5%. Mat erials used in cabin et fa bri cation , such as v ul ca- nized rubb er , that can outgas corr osive comp ounds should be mi nimize d or elimina ted. The useful l ife of any elec tronic equi pment m ay be extend ed by replaci ng mate ri[...]

  • Página 37

    Cheetah N S SAS Prod uct Manual , Rev. B 31 6. 5 Mecha ni ca l s pe ci fic at ion s Refe r to Figur e 23 for d et ailed ph ysical dimensions . See Sectio n 8.3, “Dri ve moun ting.” Figure 23. Physical d imensions Height : 1.028 i n 26.1 1 mm Wid th: 4.010 in 101 .85 mm Depth : 5 .787 in 146 .99 mm W eight: 1.76 po unds 0.8 00 kilogr ams 26.1 1 [...]

  • Página 38

    32 Cheet ah NS SAS P roduct Man ual, Rev. B[...]

  • Página 39

    Cheetah N S SAS Prod uct Manual , Rev. B 33 7.0 Defect and error management Seag ate continues to use innovative techno logies to ma nage defect s and erro rs. These tech nologie s are designed to incre ase data integr ity , per form drive se lf-m aintenance, an d validat e pro per dri ve opera tion. SCSI defect and error man agement involves dr iv[...]

  • Página 40

    34 Cheet ah NS SAS P roduct Man ual, Rev. B The drive firmware error recove ry algor ithms consist s of 1 1 level s for read reco veries and five levels for writ e. Each level may consist of m ultiple steps, where a step is defined as a re covery function involving a sin gle re- read or re- write a ttempt. T he maximum l evel used by the drive in L[...]

  • Página 41

    Cheetah N S SAS Prod uct Manual , Rev. B 35 7. 3 SAS s ys tem err or s Inform ation on the reporting of operati onal error s or fau lts across the i nterface is gi ven in the SAS Interface Manual . The SSP Respon se returns inform ation to the host a bout nume rous kinds of e rro rs or fault s. T he Recei ve Diagno stic Result s report s the result[...]

  • Página 42

    36 Cheet ah NS SAS P roduct Man ual, Rev. B 7.6 De ferr ed A uto-R eal l ocat ion Deferred Aut o-Realloc ation (DAR) simplifies reallocation al g orithms at the system leve l by allowing the drive to reall ocate un readabl e location s on a subse quent write com mand. S ites ar e m arked fo r DAR during read oper- atio ns perfo rmed b y the driv e.[...]

  • Página 43

    Cheetah N S SAS Prod uct Manual , Rev. B 37 8.0 Inst allation Cheet ah d isk drive inst allatio n is a plu g-and-play process. Ther e are no ju mpers, switche s, or termina tors on the dri ve. SAS drives are designed to be used in a host system t hat pro vides a SAS-comp atible backplan e with bays designed to acco mmodate t he drive. In such syste[...]

  • Página 44

    38 Cheet ah NS SAS P roduct Man ual, Rev. B 8.2 Coolin g The host enclosure must di ssipate heat from the dr ive. Y ou should confirm that the host en closure is desig ned to ensur e that the dr iv e ope rate s withi n the tempe ratu re measur emen t gui de lines descr ibed i n Sectio n 6.4. 1. In some case s, forced ai rflow may be required to ke [...]

  • Página 45

    Cheetah N S SAS Prod uct Manual , Rev. B 39 8. 3 Driv e m oun ti ng Mount the dr iv e using the b ottom or side mo unti ng holes. If you moun t the d ri ve u sing the botto m ho le s, ensu re that you do no t physically disto rt the dr ive by att empting to m ount it on a stif f, non-fl at surface. The allowable moun ting s urface stif fne ss is 80[...]

  • Página 46

    40 Cheet ah NS SAS P roduct Man ual, Rev. B[...]

  • Página 47

    Cheetah N S SAS Prod uct Manual , Rev. B 41 9.0 Interface requ irement s This sect ion p artial ly de scribes the inter face requir ement s as implemented on Cheetah drive s. Additi onal i nfor- mation is p rovided in the SAS Inter face Manu al (par t number 100293071) . 9.1 SA S fe at ur es This secti on lists t he SAS- specific fea tures supporte[...]

  • Página 48

    42 Cheet ah NS SAS P roduct Man ual, Rev. B 9.2 Dual po rt supp or t Cheet ah SAS drive s have tw o ind epen dent po rt s. Th ese por t s may be co nnecte d in the sa me or dif fere nt S CSI domains. Eac h drive port has a unique SAS address. The two port s run at the same l ink rate. The first port to successfully com plete speed negotiati on sets[...]

  • Página 49

    Cheetah N S SAS Prod uct Manual , Rev. B 43 9. 3 SCSI com m and s su ppor te d T able 6 li sts the SCSI com mands supp orted by Chee ta h drives. T a ble 6: Co mmand s su ppor ted by Cheet ah N S SAS f amil y dr ive s Com m a nd na m e Com m a nd code Sup po rte d Change D efini tion 40h N Comp are 39h N Cop y 18h N Cop y and V erify 3Ah N Form at [...]

  • Página 50

    44 Cheet ah NS SAS P roduct Man ual, Rev. B Non-me dium Err or pa ge (0 6h) Y Pages Suppor ted list ( 00h) Y Read Erro r Coun ter p age (0 3h) Y Re ad Reverse E rror Cou nter p age ( 04h) N Self-test Re sults p age (10h) Y Backg round Med ium Scan pa ge (15h) Y S tar t-stop C ycle Coun ter pag e (0Eh) Y T emper ature p age (0D h) Y V erify Error Co[...]

  • Página 51

    Cheetah N S SAS Prod uct Manual , Rev. B 45 Reassign B locks 07h Y Recei ve Diagnosti c Result s 1Ch Y Supported Diagnost ics p ages (00h) Y T ranslate p age (40h ) Y Release 17h Y Relea se (1 0) 57h Y Request S ense 03h Y Actual Retry Cou nt bytes Y Extend ed Sense Y Field Pointer bytes Y Reserve 16h Y 3rd Part y Reserve Y Extent Reservation N Res[...]

  • Página 52

    46 Cheet ah NS SAS P roduct Man ual, Rev. B [1] Cheet ah NS drives can format to 512, 520 , 524 , or 528 byte s per logi cal block. [2] Wa r n i n g . Power l oss dur ing fla sh progr ammin g can re sult in firmwar e corru ption. This usually m akes the driv e inoperab le. [3] Refe rence Mod e Sense co mmand 1A h for mo de p ages supp orted. [4] Y [...]

  • Página 53

    Cheetah N S SAS Prod uct Manual , Rev. B 47 9.3.1 Inqu iry dat a T able 7 l ists the Inquiry com mand dat a th at the dri ve should re turn t o the initia tor pe r the form at given in the SAS In terface Ma nual . T able 7: Cheet ah NS SAS inquiry d at a * Copyright year (changes w ith actual year). ** SCSI Revision sup port. R efer to the appropia[...]

  • Página 54

    48 Cheet ah NS SAS P roduct Man ual, Rev. B On standa rd OEM drives, the saved values are taken from the default values list and store d into the saved values stor age loc ation on the media p rior to shi pping. 3. Curren t values Curren t values are volatile values bei ng used by the drive to contro l it s oper ation . A Mod e Sel ect comm and can[...]

  • Página 55

    Cheetah N S SAS Prod uct Manual , Rev. B 49 9.3.2.1 ST3 400755S S Mode Sens e dat a MOD E PA GES: DEF 80 06 00 80 0f 00 00 00 CHG 80 06 b7 c0 0f 00 00 00 DEF 81 0a c0 0b ff 00 00 00 05 00 ff ff CHG 81 0a ff ff 00 00 00 00 ff 00 ff ff DEF 8 2 0e 00 0 0 00 0 0 00 0 0 0 0 00 0 1 3a 00 00 00 0 0 CHG 8 2 0e 00 0 0 00 0 0 00 0 0 0 0 00 f f ff 00 00 00 0 [...]

  • Página 56

    50 Cheet ah NS SAS P roduct Man ual, Rev. B 9. 4 Misc ell ane ou s oper ati ng fe atur es a nd c on dit io ns T able 8 list s various fea ture s and co nditions. A “ Y” in the su pport co lumn indicate s the f eature o r condi tion is support ed. An “ N” in the suppo rt co lumn indi cates the feat ure or con dition is no t supp orted. T a b[...]

  • Página 57

    Cheetah N S SAS Prod uct Manual , Rev. B 51 9.4.1 SAS ph ysica l interface Figure 26 shows the lo cation of th e SAS devi ce conn ecto r J1. Figur es 27 an d 28 pr ovide the d im ension s of the SAS device. Det ails of the ph ysical, electrical, an d logical chara cteristics are provide d within this secti on. The opera tional aspect s of Seag ate?[...]

  • Página 58

    52 Cheet ah NS SAS P roduct Man ual, Rev. B Figu re 2 7 . SAS c on ne c t or dime n sio ns C OF DATUM B L 5.08 1.27 (6X) 1.27 (14X) 15.875 0.35MIN 15.875 33.43 0.05 B 4.90 0.08 0.84 0.05 (22X) 0.15 B P15 P1 S7 S1 SEE Detail1 0.30 0.05 (4X) 4.00 0.08 0.15 D 0.30 0.05 (2X) 41.13 0.15 B B C C A A 0.20 B 42.73 REF. C OF DATUM D L 1.10 R0.30 0.08 (4X) 2[...]

  • Página 59

    Cheetah N S SAS Prod uct Manual , Rev. B 53 Figu re 2 8 . SAS c on ne c t or dime n sio ns 9.4.2 Phy sical char act eristic s This section define s physical int erface conne ctor . 9.4.3 Conn ector req uirement s Cont act your preferr ed con nector man ufacturer for mating p a rt informa tion. The SA S device conn ector is illustrate d in Figure s [...]

  • Página 60

    54 Cheet ah NS SAS P roduct Man ual, Rev. B 9.4.4 Elect rical d escript ion SAS d rives use the d evice con nector for: • DC power • SAS inte rface • Activity LED This conn ector i s designed to e ither plug dir ectly into a backpan el or accept cables. 9.4.5 Pin desc rip tio ns This secti on pro vides a p in-out of the SAS device and a descr[...]

  • Página 61

    Cheetah N S SAS Prod uct Manual , Rev. B 55 9.4.6 SAS transm itter s and r eceivers A typ ical SAS dif fere ntial copper tra nsmitter a nd r eceiver p air is show n in Fi gure 29. The re ceiver is AC co u- pling to elimi nate groun d shif t noise. Figure 29. SAS tr ansmitters and receivers 9.4.7 P ower The dr ive re ceives powe r (+5 volt s and +12[...]

  • Página 62

    56 Cheet ah NS SAS P roduct Man ual, Rev. B The Re ady LED Ou t signa l is desig ned t o pull down the cat hode of an LED . The an ode i s attache d to the proper +3.3 volt supp ly thr ough an app ropriate current limiting resisto r . The LE D an d the cu rrent l imitin g resis- tor ar e external to the d rive. See T able 12 for t he ou tput charac[...]

  • Página 63

    Cheetah N S SAS Prod uct Manual , Rev. B 57 9.5.2.1. 2 Rec eive eye m ask Figure 30 de scribes the re ceive eye m ask. This eye m ask appl ies to jitter after the appli cation of a si ngle pol e high-p ass fre quency-weighti ng function tha t progressivel y attenuates ji tter at 20 dB/deca de below a frequency of ((b it rate ) / 1 .667). Figure 30.[...]

  • Página 64

    58 Cheet ah NS SAS P roduct Man ual, Rev. B The leading and trailing e dge sl opes of figure 30 sha ll be pre served. A s a re sult the a mplitude valu e of Z 1 is less than that given in table 15 and Z1 TO L and Z1 OP shall be defined from those slopes by the following equa- tion: where: Z1 TOL is the value fo r Z1 to b e used for t he tolerance m[...]

  • Página 65

    Cheetah N S SAS Prod uct Manual , Rev. B 59 9.5.2.2 T ransmi tter si gnal ch aracter istics T able 14 specifies th e signa l requireme nts at the tra nsm itter en d of a TxR x connection as me asured into the zero-le ngth te st load. All sp ecificati ons are b ased on dif ferenti al measur ement s. The OOB sequence is perform ed at signal volt age [...]

  • Página 66

    60 Cheet ah NS SAS P roduct Man ual, Rev. B 9.5.2.3 Receiver signal charac teristi cs T able 1 5 defi nes the compl iance point req uirement s of t he signal at the r eceiver e nd of a T xRx con nection as measur ed into the te st loads specified in figur e 33 and figu re 34 . 9.5.2.3. 1 Ji tter T able 16 d efines t he maxi mum all owable jitt er .[...]

  • Página 67

    Cheetah N S SAS Prod uct Manual , Rev. B 61 9.5.2.3. 2 Rec eiver jitter toler ance T able 17 d efines t he amount of jitter the receiver shall tole rate . 9.5.2.3. 3 Comp liant jit ter tes t p attern ( CJTP A T) The CJTP A T wi thin a comp liant protoco l fra me is used for all jitte r testi ng unless o therwise specifie d. See the SAS Inte rface M[...]

  • Página 68

    62 Cheet ah NS SAS P roduct Man ual, Rev. B 9.5.2.4 Elect rical T xRx conn ecti ons TxRx conn ections may be d ivided i nto T xRx connecti on segme nts . In a sing le T xRx connecti on indi vidual TxRx connection segmen ts may be forme d from dif fering med ia and mate rials, includi ng traces on print ed wir- ing boa rds and optical fibers. This s[...]

  • Página 69

    Cheetah N S SAS Prod uct Manual , Rev. B 63 A com binatio n of a zer o-length t est load and the tran smitter compliance transf er function (TCT F) test load method ology is used for the specifi cat io n of tr ansmit ter char acteristics. This m ethodology speci fies the trans- mitter signal at t he test po int s on the req uired test loads. The tr[...]

  • Página 70

    64 Cheet ah NS SAS P roduct Man ual, Rev. B Figure 34 sho ws the zero- length test l oad. Figu re 3 4. Zer o-l e ngt h test lo ad Figure 35 show s an ISI loss example at 3. 0 Gbp s. Figure 35. ISI loss example at 3.0 Gbp s Figure 36 show s an ISI loss example at 1. 5 Gbp s. Figure 36. ISI loss example at 1.5 Gbp s Tx + Tx - 10 n F 5 0 ohm 50 o hm P[...]

  • Página 71

    Cheetah N S SAS Prod uct Manual , Rev. B 65 9.5.2.5 Receiver chara cterist ics The driv e re ceiver i s A.C. coup led. The receive netw o r k termina tes the TxR x conne ction by a 100 ohm eq ui va- lent i mpedance a s specified in tabl e 18. The rece iver ope rates within a B ER of 10 -12 when a SAS si gnal with valid volt age and timing character[...]

  • Página 72

    66 Cheet ah NS SAS P roduct Man ual, Rev. B[...]

  • Página 73

    Cheetah N S SAS Prod uct Manual , Rev. B 67 10.0 Seagat e T echnolo gy suppo rt service s Inter net For info rma tion regardin g Seagate pr oducts and services, vi sit www .sea gate.com . Worl dwide sup port is availa ble 24 hour s daily by email fo r your que stions. Pre sales Su ppor t: Presa les@Seaga te.com T e chn ical Su pp ort: DiscSuppo rt@[...]

  • Página 74

    68 Cheet ah NS SAS P roduct Man ual, Rev. B Custo mer Se rvice Op era tion s W arranty S ervice Seag ate of fer s worldw ide custom er supp ort for Seagate pro duct s. Se agate distr ibutor s, OEMs and other di rect customer s should cont act their Sea gate Customer S ervice Operati ons (CSO) repr esent ative for warra nty- related issu es. Resell [...]

  • Página 75

    Cheetah N S SAS Prod uct Manual , Rev. B 69 Index Numerics 12 volt pin s 55 5 volt pins 55 A abort t ask set function 41 AC coup ling 55 AC powe r re quirements 23 ACA active status 50 ACA acti ve, faulted i nitiator st atus 5 0 acoustics 29 active LE D Out sign al 55 actuator assembly design 7 adaptiv e caching 5 0 AFR 8 air cl eanliness 29 air fl[...]

  • Página 76

    70 Cheet ah NS SAS P roduct Man ual, Rev. B envi ronmenta l control 29 error manage ment 33 rat es 15 error s 33 EU RoHS dire cti ve 30 F FCC rules and r egulatio ns 3 feature s 8 interface 41 firmware 8 corrup tion 46 flawe d sector re allocation 8 Form at command executio n time 12 function complete , code 00 41 not supp orted , code 05 4 1 rejec[...]

  • Página 77

    Cheetah N S SAS Prod uct Manual , Rev. B 71 audi ble 3 noi se immunity 24 non-op erat ing 27 , 29 temper ature 26 non-op erat ing vibrati on 29 O offi ce environme nt 29 operat ing 27 , 29 option sel ection 54 out-of- plane distortion 39 P package size 28 package t est specifica tion 5 packaged 28 param eter roun ding 5 0 PCBA 39 peak bits p er inc[...]

  • Página 78

    72 Cheet ah NS SAS P roduct Man ual, Rev. B operat ion 50 system cha ssis 39 T task man agement fun ctions 4 1 Abort task se t 41 Clear ACA 41 Clear task se t 41 termina te task 41 task man agement r esponse codes 41 Function comp lete 00 41 Function not suppor ted 05 41 Function reject 04 41 task set full st atus 50 technical support services 67 t[...]

  • Página 79

    [...]

  • Página 80

    Seag ate T echnolog y LLC 920 D isc Drive , Scott s V alley, Californ ia 95066- 4544, U SA Public ation N umber: 1 00453994, Rev . B, Printed i n USA[...]